Mark Metzger carries his surfboard through the water in Galveston, Texas as Hurricane Harvey intensifies in the Gulf of Mexico Friday, Aug. 25, 2017. Harvey is forecast to be a major hurricane when it makes landfall along the middle Texas coastline. (AP Photo/David J. Phillip)(David J. Phillip/AP)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT crew members use a phone to check the radar while waiting to install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

Rickey Dailey, a public information officer with TxDOT, waves to passing cars as they pass through a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT worker Hunter Weinrich guides an aluminum slat into place while installing the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane(Nick Wagner/Austin American-Statesman)

A line of cars exit Port Aransas, Texas, toward the surge wall on TX-361 on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane(Nick Wagner/Austin American-Statesman)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

A vehicle passes through an unfinished surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

TxDOT crews install the final portion of a surge wall on TX-361 leading to the Port Aransas ferry in Aransas Pass, Texas, on Friday, August 25, 2017. Hurricane Harvey is expected to make landfall on the Texas coast tonight or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

Lynn Dixon places sandbags outside their home decor store in Galveston, Texas as Hurricane Harvey intensifies in the Gulf of Mexico Friday, Aug. 25, 2017. Conditions were deteriorating along Texas's Gulf Coast on Friday as Hurricane Harvey strengthened and slowly moved toward the state, with forecasters warning that evacuations and preparations "should be rushed to completion." (AP Photo/David J. Phillip)(AP)

Carolyn Price empties a fridge on the lower level of her property in Matagorda, Texas before Hurricane Harvey makes landfall Friday, Aug. 25, 2017. Conditions were deteriorating along Texas's Gulf Coast on Friday as Hurricane Harvey strengthened and slowly moved toward the state, with forecasters warning that evacuations and preparations "should be rushed to completion." Price and her husband David drove down from Lake Conroe to retrieve their power fishing boat and other belongings after hearing the surge would reach 10-12 feet. (Godofredo A. Vasquez/Houston Chronicle via AP)(AP)

Water rises at Bob Hall Pier in Corpus Christi, Texas as Hurricane Harvey approaches on Friday, Aug. 25, 2017. The slow-moving hurricane could be the fiercest such storm to hit the United States in almost a dozen years. Forecasters labeled Harvey a "life-threatening storm" that posed a "grave risk" as millions of people braced for a prolonged battering. (Courtney Sacco/Corpus Christi Caller-Times via AP)(AP)

This satellite image provided by NASA on Thursday, Aug. 24, 2017 shows Hurricane Harvey off the Gulf of Mexico. Harvey intensified as it steered toward the Texas coast on Friday, with forecasters saying it had strengthened to a Category 2 storm with the potential to swamp communities more than 100 miles (161 kilometers) inland. (NASA via AP)(AP)

Surf rises at Bob Hall Pier Corpus Christi, Texas as Hurricane Harvey approaches on Friday, Aug. 25, 2017. The slow-moving hurricane could be the fiercest such storm to hit the United States in almost a dozen years. Forecasters labeled Harvey a "life-threatening storm" that posed a "grave risk" as millions of people braced for a prolonged battering. (Courtney Sacco/Corpus Christi Caller-Times via AP)(AP)

Austin Independent School District employee Leticia Hernandez places sandbags around Martin Middle School as the city prepares for Hurricane Harvey Friday, Aug. 25, 2017.(Stephen Spillman/Austin American-Statesman)

Austin Independent School District employee Maribel Rodriguez places sandbags around Martin Middle School as the city prepares for Hurricane Harvey Friday, Aug. 25, 2017.(Stephen Spillman/Austin American-Statesman)

Austin Independent School District employees place sandbags around Martin Middle School as the city prepares for Hurricane Harvey Friday, Aug. 25, 2017.(Stephen Spillman/Austin American-Statesman)

Austin Independent School District employees place sandbags around Martin Middle School as the city prepares for Hurricane Harvey Friday, Aug. 25, 2017.(Stephen Spillman/Austin American-Statesman)

The bread section of a Kroger store is empty as people prepare for the possible arrival of Hurricane Harvey on August 24, 2017 in Houston, Texas. Hurricane Harvey has intensified into a hurricane and is aiming for the Texas coast with the potential for up to 3 feet of rain and 125 mph winds.(Joe Raedle/Getty Images)

Traffic evacuating from the Texas coast before Hurricane Harvey makes landfall crowds I-37 northbound outside of San Antonio, Texas, on Thursday, August 24, 2017. Hurricane Harvey is expected to make landfall on the Texas coast Friday night or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

Angie Flores walks her dogs, Little Boy, left, and Mavis, at a gas station in Pleasanton, Texas, on Thursday, August 24, 2017. Flores said it's been a long time since she last evacuated her home in Corpus Christi because of a hurricane. "I'm very worried... last time I had to evacuate I was a kid during Hurricane Allen," Flores said. Hurricane Harvey is expected to make landfall on the Texas coast Friday night or early Saturday morning as a category 3 hurricane.(Nick Wagner/Austin American-Statesman)

A Galveston Park Board of Trustees crew removes portable toilets from the seawall Thursday, Aug. 24, 2017, as they prepare the beachfront for severe weather from Hurricane Harvey in Galveston, Texas. The National Hurricane Center is forecasting Harvey will become a major hurricane to hit the middle Texas coastline. (Jennifer Reynolds /The Galveston County Daily News via AP)(Jennifer Reynolds/AP)

Vehicles and RVs pass parked oil platforms as they are ferried away from Port Aransas, Texas, after a mandatory evacuation was ordered in preparation for Hurricane Harvey, Thursday, Aug. 24, 2017. Harvey intensified into a hurricane Thursday and steered for the Texas coast. (AP Photo/Eric Gay)(Eric Gay/AP)

Steve Vega cleans his catch as wind-blown rain falls at a fishing pier on Thursday, Aug. 24, 2017, in Port Isabel, Texas. The deep South Texas town and surrounding communities are expected to receive several inches of rain and damaging winds as Hurricane Harvey passes along the coast toward the Texas Coastal Bend. (Jason Hoekema/The Brownsville Herald via AP)(Jason Hoekema/AP)

A blank advertising display is seen after its boards were removed along the lower Texas coast as residents and businesses prepare for Hurricane Harvey on Thursday, Aug. 24, 2017, in Port Isabel, Texas. Inland boards were secured using straps, where storm effects are expected to be slightly milder than along the coast as Harvey churns northward toward the Texas Coastal Bend. (Jason Hoekema/The Brownsville Herald via AP)(Jason Hoekema/AP)

Rogelio Ortiz makes his way off the Pirate's Landing Fishing Pier as rain from Hurricane Harvey falls on Thursday, Aug. 24, 2017, in Port Isabel, Texas. Pier employees stated that the pier would be closed until further notice when the last few fishing customers departed. (Jason Hoekema/The Brownsville Herald via AP)(Jason Hoekema/AP)

What is normally a marina packed with recreational vessels sits empty on Thursday, Aug. 24, 2017, in Port Isabel, Texas. Residents and boat-owners secured or removed their property from the coastal waters in preparation for the arrival of Hurricane Harvey, which is expected to deliver several inches of rain and damaging tropical storm winds as it churns northward to the Texas Coastal Bend. (Jason Hoekema/The Brownsville Herald via AP)(Jason Hoekema/AP)

Water rises at Bob Hall Pier in Corpus Christi, Texas as Hurricane Harvey approaches on Friday, Aug. 25, 2017. The slow-moving hurricane could be the fiercest such storm to hit the United States in almost a dozen years. Forecasters labeled Harvey a "life-threatening storm" that posed a "grave risk" as millions of people braced for a prolonged battering. (Courtney Sacco/Corpus Christi Caller-Times via AP)(Courtney Sacco/AP)

CORPUS CHRISTI, TX - AUGUST 25: Cody Munds, Lee Martin and John Pezzi (L-R) fill sandbags as people prepare for approaching Hurricane Harvey on August 25, 2017 in Corpus Christi, Texas. Hurricane Harvey has intensified into a hurricane and is aiming for the Texas coast with the potential for up to 3 feet of rain and 125 mph winds. (Photo by Joe Raedle/Getty Images)(Joe Raedle/Getty Images)

TEXAS, Aug. 25, 2017 -- Photo taken on Aug. 24, 2017 shows empty storage in a market in Houston, the United States. The populations in the southern part of Texas are preparing for significant impacts from Hurricane Harvey as it is expected to make landfall as a Category 3 Hurricane from the Gulf of Mexico on Friday. (Xinhua/Zhong Jia via Getty Images)(Xinhua News Agency/Xinhua News Agency/Getty Images)

TEXAS, Aug. 25, 2017 -- An employee holds a sign showing water has sold out in a chained market in Houston, the United States, Aug. 24, 2017. The populations in the southern part of Texas are preparing for significant impacts from Hurricane Harvey as it is expected to make landfall as a Category 3 Hurricane from the Gulf of Mexico on Friday. (Xinhua/Liu Liwei via Getty Images)(Xinhua News Agency/Xinhua News Agency/Getty Images)

TEXAS, Aug. 25, 2017 -- A man places sand bags in preraration of Hurricane Harvey in downtown Galveston, the United States, on Aug. 24, 2017. The populations in the southern part of Texas are preparing for significant impacts from Hurricane Harvey as it is expected to make landfall as a Category 3 Hurricane from the Gulf of Mexico on Friday. (Xinhua/Robert Stanton via Getty Images)(Xinhua News Agency/Xinhua News Agency/Getty Images)

TEXAS, Aug. 25, 2017 -- Photo taken on Aug. 24, 2017 shows empty storage in a market in Houston, the United States. The populations in the southern part of Texas are preparing for significant impacts from Hurricane Harvey as it is expected to make landfall as a Category 3 Hurricane from the Gulf of Mexico on Friday. (Xinhua/Zhong Jia via Getty Images)(Xinhua News Agency/Xinhua News Agency/Getty Images)

Strong winds batter seaside houses before the approaching Hurricane Harvey in Corpus Christi, Texas on August 25, 2017.
Harvey, which is set to make landfall later today into early Saturday, was packing maximum sustained winds of close to 120 miles (195 kilometers) per hour, the National Hurricane Center said. / AFP PHOTO / MARK RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)(MARK RALSTON/AFP/Getty Images)